<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        button{
            margin-left: 100px;
            margin-top: 20px;
            width: 50px;
        }
    </style>
</head>
<body>
    <form action="/user" method="POST">
        账号：<input type="text" name="username"><br>

        密码：<input type="text" name="pwd"><br>
        <button>登录</button>
    </form>
    
</body>
</html>